Mat Zucker has joined R/GA, a New York-based interactive ad agency, as creative director. Zucker will be responsible for creative direction for Johnson & Johnson and other accounts, supervision of art and copy and overall stewardship of ideas from inception to production. Most recently, he was senior partner and group creative director at OgilvyOne in New York. With more than five years at that shop, he led all interactive and direct marketing creative for Cisco Systems and Enfamil and interactive-focused creative for Ameritrade and American Express. Before that, Zucker was gcd at Novo/Blue Marble, co-creative director at Manhattan Marketing Ensemble and began his ad career as a copywriter at Foote Cone & Belding. His brand experience includes AT&T, Continental Airlines, Ernst & Young, General Motors, Nabisco, Nathan's Famous and Procter & Gamble.